87400880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1609}}^1$

素因数の和:1726

約数の個数: 80

約数和(自身を含む): 234776640

約数和(自身を除く): 147375760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 97, 112, 140, 194, 280, 388, 485, 560, 679, 776, 970, 1358, 1552, 1609, 1940, 2716, 3218, 3395, 3880, 5432, 6436, 6790, 7760, 8045, 10864, 11263, 12872, 13580, 16090, 22526, 25744, 27160, 32180, 45052, 54320, 56315, 64360, 90104, 112630, 128720, 156073, 180208, 225260, 312146, 450520, 624292, 780365, 901040, 1092511, 1248584, 1560730, 2185022, 2497168, 3121460, 4370044, 5462555, 6242920, 8740088, 10925110, 12485840, 17480176, 21850220, 43700440, 87400880]

約数ペア:

[(1, 87400880), (2, 43700440), (4, 21850220), (5, 17480176), (7, 12485840), (8, 10925110), (10, 8740088), (14, 6242920), (16, 5462555), (20, 4370044), (28, 3121460), (35, 2497168), (40, 2185022), (56, 1560730), (70, 1248584), (80, 1092511), (97, 901040), (112, 780365), (140, 624292), (194, 450520), (280, 312146), (388, 225260), (485, 180208), (560, 156073), (679, 128720), (776, 112630), (970, 90104), (1358, 64360), (1552, 56315), (1609, 54320), (1940, 45052), (2716, 32180), (3218, 27160), (3395, 25744), (3880, 22526), (5432, 16090), (6436, 13580), (6790, 12872), (7760, 11263), (8045, 10864)]